roobie / WEASEL

A whole lotta weasels

A joint effort to write the Dawkins' Weasel algorithm in as many languages as possible, using the language's specific idioms.

Algorithm described here.

• Each implementation should only be one file and placed in the root folder.
• Each file should be named by the language in which it was written.
• The program should print the fittest string of each generation, as well as the number of generations it took.
• Mutation rate should be 4%, generation size 100.

Each implementation should, as far as it is feasable, capture the charachteristics of that language. The goal is readable and enjoyable implementations in as many languages as possible.

Instructions

• Fork this repository
• Write your Weasel in the desired language.
• Name the file after the language, add "-number" to the end if an implementation already exists.
• Add instructions on how to run the code, including instructions on how to install dependencies in the README.md file. You can assume that the users have Homebrew or Chocolatey
• Creata a pull request

Building the examples:

To be able to build and run the Weasels you need Homebrew package manager (OSX) or Chocolatey package manager (Windows)

Below are the basic instructions to run the code examples.

Python

Installation OSX:

brew install python

Installation Windows:

choco install python 

To run

python python.py

Haskell

runhaskell haskell.hs

Go

apt-get install go
go run go.go

D

apt-get install gdc
gdc d.d
./a.out

F#

first install mono:

    apt-get install mono

clone the github repo and follow the instructions there (make && make install)

then:

    fsharpc fsharp.fs
    mono fsharp.exe

Common Lisp

install:

apt-get install sbcl

run:

sbcl --script common-lisp.lisp

Coffeescript

1. install node via apt-get

2. install coffee-script via npm

3. run:

    coffee coffee-script.coffee
   

Nimrod

1. install nim (e.g. apt install nim)
2. run:

	nimrod c -r nim.nim

perl

perl perl.pl

Visual Basic 6

1. Start Visual Basic 6
2. Select "Standard EXE" from the new projects dialog
3. Add "visual-basic-6.mod" to the project ("Add Module")
4. Double click on the form to enter Form_Load() event
5. Type Call WeaselProgram in the event
6. Hit F5 to run

Since VB6 is the base for VBScript, the VB6 weasel can easily be converted to VBScipt. For example to run in Excel, create a new macro and replace Debug.Print with Range("A" & excel_row).Value = , where excel_row is an incrementing variable for keeping track of the current row.

Erlang

install latest erlang platform

erlc weasel_erlang.erl erl -noshell -run weasel_erlang main